I HAVE A PROBLEM WHICH I AM SURE MANY OF YOU HAVE ENCOUNTERED. OUR POWER
COMPANY RUNS 14,400 VOLTS ON THE MAINS. NEEDLESS TO SAY POWERLINE NOISE IS
UNBELIEVABLE IN THE EARLY MORNING AND LATER IN THE EVENING. THE POWER
COMPANY IS DILIGENT IN ATTEMPTING TO ELIMINATE THE PROBLEM HOWEVER IT IS
PRETTY MUCH A HIT OR MISS SITUATION BECAUSE THEY CANNOT PINPOINT THE
OFFENDING PIECE OF EQUIPMENT. THE LINES ARE ABOUT 200 YARDS NORTH OF MY QTH
RUNNING ALONG THE STATE HIGHWAY. THE POLES ARE APPROXIMATELY FIFTY FOOTERS
WITH TWO PAIRS OF THREE PHASES(THAT IS TO SAY THREE PHASES ON EACH SIDE OF
THE POLE) ON BELL TYPE INSULATORS MOUNTED ON STANDOFFS. THIS SET OF MAINS
IS LESSTHAN TWO YEARS OLD AND THE PROBLEMS SHOWED UP SHORTLY AFTER THEY WERE
INSTALLED. THERE IS A 14,400 VOLT FEEDER RUNNING DOWN THE STREET ALONGSIDE
MY STATION APPROXIMATELY 50 YARDS TO THE WEST WITH NO NOTICABLE NOISE BEING
GENERATED THERE. THIS NOISE COVERS THE ENTIRE HF SPECTRUM FROM 500Khz TO
30Mhz. .
MY QUESTIONS ARE:
1. HAS ANYBODY HAD THE SAME PROBLEM ? NO JOKE
2. HOW DID YOU RESOLVE IT ?
3: WHAT TYPE OF EQUIPMENT DID THE POWER COMPANY USE TO DETERMINE WHAT PIECE
OF EQUIPMENT WAS CAUSING THE PROBLEM?
4. ONCE THE PROBLEM WAS CORRECTED HOW LONG DID THE REPAIRS LAST ?
I AM IN FLORIDA 20 MILES NORTHEAST OF TAMPA IN A MOSTLY RURAL AREA. OUR
POWER COMPANY IS A COOPERATIVE AND THEY DO TRY THEIR BEST HOWEVER THEY (AND
I) NEED HELP. ANY SUGGESTIONS OR SOLID ANSWERS MUCH APPRECIATED. THANKS A
BUNCH RON KK4CR
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